diff mbox series

rapidio: make rio_bus_type const

Message ID 20240208-bus_cleanup-rapidio-v1-1-c69040ab0151@marliere.net
State New
Headers
Series rapidio: make rio_bus_type const |

Commit Message

Ricardo B. Marliere Feb. 8, 2024, 7:12 p.m. UTC 
  Now that the driver core can properly handle constant struct bus_type,
move the rio_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
---
 drivers/rapidio/rio-driver.c | 2 +-
 include/linux/rio.h          | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)


---
base-commit: 547ab8fc4cb04a1a6b34377dd8fad34cd2c8a8e3
change-id: 20240208-bus_cleanup-rapidio-93b380dbbea5

Best regards,
diff mbox series

Patch

diff --git a/drivers/rapidio/rio-driver.c b/drivers/rapidio/rio-driver.c
index 1b3b4c2e015d..2baef45ee5ff 100644
--- a/drivers/rapidio/rio-driver.c
+++ b/drivers/rapidio/rio-driver.c
@@ -227,7 +227,7 @@  struct class rio_mport_class = {
 };
 EXPORT_SYMBOL_GPL(rio_mport_class);
 
-struct bus_type rio_bus_type = {
+const struct bus_type rio_bus_type = {
 	.name = "rapidio",
 	.match = rio_match_bus,
 	.dev_groups = rio_dev_groups,
diff --git a/include/linux/rio.h b/include/linux/rio.h
index 2cd637268b4f..e9ca2fb7133f 100644
--- a/include/linux/rio.h
+++ b/include/linux/rio.h
@@ -78,7 +78,7 @@ 
 #define RIO_CTAG_RESRVD	0xfffe0000 /* Reserved */
 #define RIO_CTAG_UDEVID	0x0001ffff /* Unique device identifier */
 
-extern struct bus_type rio_bus_type;
+extern const struct bus_type rio_bus_type;
 extern struct class rio_mport_class;
 
 struct rio_mport;